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Hazardous Weather Conditions

Current conditions at

Decatur Airport (KDEC)

Lat: 39.83°NLon: 88.87°WElev: 670ft.

Overcast

74°F

23°C

Humidity 82%
Wind Speed NW 3 mph
Barometer 30.04 in (1016.6 mb)
Dewpoint 68°F (20°C)
Visibility 10.00 mi
Last update 14 Oct 12:54 pm CDT
Extended Forecast for

Chestnut IL

  • This Afternoon

    This Afternoon: Mostly cloudy, with a high near 76. North wind around 8 mph.

    High: 76 °F

    Mostly Cloudy

  • Tonight

    Tonight: A slight chance of showers before 3am, then a slight chance of showers after 4am.  Cloudy, with a low around 61. East northeast wind 8 to 11 mph, with gusts as high as 17 mph.  Chance of precipitation is 20%.

    Low: 61 °F

    Cloudy then
    Slight Chance
    Showers

  • Thursday

    Thursday: Showers and thunderstorms before 1pm, then showers likely and possibly a thunderstorm between 1pm and 4pm, then a chance of showers and thunderstorms after 4pm.  High near 75. East wind around 9 mph becoming south in the afternoon. Winds could gust as high as 17 mph.  Chance of precipitation is 100%. New rainfall amounts between a half and three quarters of an inch possible.

    High: 75 °F

    Showers

  • Thursday Night

    Thursday Night: Showers and thunderstorms likely before midnight, then a chance of showers between midnight and 1am.  Mostly cloudy, with a low around 47. Breezy, with a west northwest wind 10 to 15 mph increasing to 16 to 21 mph after midnight. Winds could gust as high as 31 mph.  Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 47 °F

    Showers
    Likely and
    Breezy

  • Friday

    Friday: A 30 percent chance of showers after 1pm.  Partly sunny, with a high near 57. Breezy, with a northwest wind 21 to 24 mph, with gusts as high as 36 mph.

    High: 57 °F

    Breezy.
    Partly Sunny
    then Chance
    Showers

  • Friday Night

    Friday Night: Mostly cloudy, then gradually becoming clear, with a low around 37. North wind 10 to 17 mph, with gusts as high as 23 mph.

    Low: 37 °F

    Decreasing
    Clouds

  • Saturday

    Saturday: Areas of frost before 8am.  Otherwise, sunny, with a high near 60. North wind around 6 mph becoming calm  in the morning.

    High: 60 °F

    Areas Frost
    then Sunny

  • Saturday Night

    Saturday Night: Clear, with a low around 36.

    Low: 36 °F

    Clear

  • Sunday

    Sunday: Areas of frost before 7am.  Otherwise, sunny, with a high near 66.

    High: 66 °F

    Areas Frost
    then Sunny

Detailed Forecast

This Afternoon
Mostly cloudy, with a high near 76. North wind around 8 mph.
Tonight
A slight chance of showers before 3am, then a slight chance of showers after 4am. Cloudy, with a low around 61. East northeast wind 8 to 11 mph, with gusts as high as 17 mph. Chance of precipitation is 20%.
Thursday
Showers and thunderstorms before 1pm, then showers likely and possibly a thunderstorm between 1pm and 4pm, then a chance of showers and thunderstorms after 4pm. High near 75. East wind around 9 mph becoming south in the afternoon. Winds could gust as high as 17 mph. Chance of precipitation is 100%. New rainfall amounts between a half and three quarters of an inch possible.
Thursday Night
Showers and thunderstorms likely before midnight, then a chance of showers between midnight and 1am. Mostly cloudy, with a low around 47. Breezy, with a west northwest wind 10 to 15 mph increasing to 16 to 21 mph after midnight. Winds could gust as high as 31 mph. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Friday
A 30 percent chance of showers after 1pm. Partly sunny, with a high near 57. Breezy, with a northwest wind 21 to 24 mph, with gusts as high as 36 mph.
Friday Night
Mostly cloudy, then gradually becoming clear, with a low around 37. North wind 10 to 17 mph, with gusts as high as 23 mph.
Saturday
Areas of frost before 8am. Otherwise, sunny, with a high near 60. North wind around 6 mph becoming calm in the morning.
Saturday Night
Clear, with a low around 36.
Sunday
Areas of frost before 7am. Otherwise, sunny, with a high near 66.
Sunday Night
Mostly clear, with a low around 40.
Monday
Mostly sunny, with a high near 73.
Monday Night
Partly cloudy, with a low around 43.
Tuesday
Mostly sunny, with a high near 74.
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ABOUT THIS FORECAST

 
Point Forecast:
Chestnut IL
 40.07°N 89.19°W (Elev. 600 ft)
1:26 pm CDT Oct 14, 2026
1pm CDT Oct 14, 2026-6pm CDT Oct 20, 2026
 
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